Iiock



WILLIAM J. KUHLS, 0F DAYTONQOHIO.

LOCK.

Specication of Letters latent.

Patented July aa, icio.

Application led December 20, 1918. Serial No. 267,617.

' of operation of such devices, whereby they will not only be cheapened in construction, but will be more eiii'cient in use, uniform in action, easily locked and unlocked, and unlikely to get out of repair.

A'urther object ofthe invention is to pro-` vide a lock mechanism to be located within the hood or other structure, which will thereby loe concealed from view.

A further object is to provide a yielding locking device which will automatically compensate for irregularities of manufacture or application, and which will automatically take up any play or lost motion of the interlocked parts, thereby ohviating rattle and chatter.

Vf ith the above primary and other incidental objects in view as will more fully appear in the specification, the invention consists of the features of construction, the parte and combinations thereof and the mode o" operation, or their equivalents, as hereinafter described and set forth in the claims.

Referring to the drawings, Figure l isv a.

perspective View of the locking device, viewed from the inside of the hood, with a portion of the mounting broken away. 1rlig. 2 is a vertical sectional view of the assembled apparatus lig. 3 is a detail elevation of the inner or rear side thereof. Fig. i is a detail View of a modification.

Like par-ts are indicated by similar characters of reierence throughout the several views.

In the drawings, 1- is the hood of the au, tomoblle,l or the slde of the other housing to be locked, while 2 is the hood sill to which 50 the hood or housing is to be engaged.

The locking device comprises a circular recessed casing 3 inserted through a suitably located opening in the hood Wall l and having a marginal flange 4 Ebearing against the 55 outer side of the wall 1. Revolubly located within the casing 3 isa disk v5 carrying the handle 6. The disk 5 is journaled upon an integral stud or trunnion 7 engaging in a bearing collar 8 formed in the-rear Wall of 60 the casing '3. The stud or trunnion projects beyond the casing 3 and is shouldered or reduced to receive a crank arm 9. Loosely mounted in the free end of the crank arm 9 is a wrist pin 10. The wrist pin 10 is 65 formed with ahead 11, and is inserted in a counter Ibored hole in the crank arm from the side next to the casing7 whereby the casing prevents the disengagement of the pin when the parts are assembled. The pin 10 76 is free to rotate in the crank arm. T he crank is pinned or otherwise iXedly secured upon the reduced end of the stud or trunnion 7. "lnclosing the crank arm and adjacent parts is a semicircular housing oi a pendant 'bracket arm 13. rllhe head of the bracket is Hanged as at i4 and is secured to the casing 3 by rivets 15' or by other suitable means. To the lower end .of the bracket arm i3 there is pivoted a locking so lever i6 the free end of which is adapted to engage beneath `the hood sill 2 or preferably 'beneath a lug ll secured to the sil.

A. helical tensioned spring 18 is connected at one end to the locking lever l@ and at its i upper end it is engaged with the wrist pin l0. As shown in Figs.. l and 2 it is threaded through an eye or opening in the wrist pin, which necessitates the rotation oi the;

Wrist pin as the crank is turned. This mode 9c of attachment insures the spring against accidental disengagement. However, an. alter- 'native construction is shown in Fig. sin which an eye turned in the extended end of like head 12 75 permitted to drop away from the lug 17 andA the spring is engaged in a peripheral. groove in the pin 10. lin this instance the pin may be fixed in the crank.

Upon rotation of the crank to a pendant position as shown in F ig. 3 the tension of the spring 18 is relaxed and the arm 16 is constant tension upon the locking arm 16 by which any slack or lost motion of the hood is automatically taken up.

The spring is maintained in tensioned condition and the locking arm in engagement with the lug by turnlng the crank arm l 9 slightly beyond dead center whereupon a stud or lug 19 upon the inner face of the disk 5 engages a stop or lug 20 on the inner face of thefc'asing wall, as shown in Figs. 2 and 3 thereby arresting the disk and crank arm, which are yieldingly held in this position "by the spring. In the drawing the stop lug 20 has been shown as a depression in the wall of the casing 3. ll-his however is a matter of convenience of manufacture, and may be varied.

From the above description it will be apparent that there is thus provided a device of the character described, possessing the particular features of advantage before enumerated as desirable, but which obviously is susceptible of modication in its form, proportions, detail lconstruiction, and ar rangement of parts, without departing from the lprinciple involved, or sacrificing any of its advantages.

While in order to comply with the statute the invention has been described in language more or less specific as to certain structural features, it is to be understood that the invention is not limited to the speciic detalls shown, but that the means and .construction herein disclosed com rise but i one of several modes -of putting t e invention into effect, and the invention is therefor claimed in any of its forms or modifications within the legitimate and valid scope of the appended claims.

Having thus described my claim:

invention I nsineoc of theactuating member.

2. rlhe combinationwith two relatively movable members to be interengaged, of'

an oscillatory locking member movable into and out of operative position, an oscillatory actuating member, a yielding link ecs Acentrically connected with the acutating member and connected to said locking member, said actuatingimember being movable to and fro across the dead center position to vary the tension of said yielding link,

and a stop for arresting the movement of said actuatin 'member at one side of, but adjacent to, t e dead center position whereby the actuating member will be held in operated position by said yielding link with the link under tension.

3. ln a lock for automobile'hoods and the like, a circular casing' mounted inthe movable wall of the hood, a revoluble disk in said casing, an operating handle carried by the disk and projecting from the outer side thereof, a crank arm operatively connected with said disk, a pendant `bracket arm also carried upon. said movable wall, l

an arm pivoted to said pendant bracket arm and adapted upon oscillation to engage beneath the sill of the hood to be locked, and a helical -spring connecting the crank arm and said pivoted arm.

4. In a locking device, a movable locking member, an oscillatory actuating member', an operating link connecting the actuating member and thev -locking member, and a housing inclosing the actuating member and link connection therewith, said housing being extended radially to form a bracket arm to which said movable locking member is connected. v

5. In a locking device, an oscillatory locking arm, an oscillatory actuating member, ahelical spring connecting the oscillatory actuating member and the oscillatory locking member placed under tension by the oscillation of the locking member, and a stop for the actuating member arresting said member when moved beyond a dead center position whereby the spring is maintained under tension.

6. In a locking device, a movable locking member, an oscillatory actuating member therefor, a wrist pin revolubly mounted n an 'eccentric position in said actuating member, a helical spring engaged with said wrist pin at one end and with the movable locking member at the opposite end and placed under tension by the rotationof the actuating member, and means for arresting the actuating member when moved beyond a dead center osition.

7. In a 1o ing device lthe combinatlon 1,311,606 i v g with two relatively movableA7 members, a ber and means for placing the yielding conmovable locking member carried by one of nection under tension. 10 the members and engaging the other mem- In testimony whereof, I have hereunto set ber, said looking member when in looking my hand this 5th day of December, 1918. position being extended in angular relation WILLAM J. KUHLS.

to the direction of normal relative move- Witnesses: Y

ment of said movable members, a yielding F. L. WALKER,

actuating connection for the locking mem- ALFRED MCCRAY. 

